KICKER (2) 43CVR124 12" Dual Voice Coil 4-Ohm Car Stereo Subwoofers Totaling 1600 Watt (2) Kicker 43CVR124 12"800 Watt Dual Voice Coil 4-Ohm Car Stereo Subwoofers. Power Handling : Peak :800 watts, RMS :400 watts, Size : 12". Injection molded SoloKon cone, Ribbed Santoprene Surround Perimeter Venting. Spiralead tinsel-lead technology, UniPlate system redirects heat away from motor structure. Stamped Steel Basket, Spring-loaded Push Terminals. 360 degree back bracing, Dual 4-Ohm high-temperature voice coils Mounting depth : 6.25". Top-mount depth : 4-3/8". Cutout diameter : 11", Frequency Response : 25 - 350Hz. Sensitivity : 87.1dB @ 1w/1m, Resonance Frequency (Fs) : 32.7. Subwoofer Design : Round / Circle, Min Sealed Box Vol : 1 cu. ft. Max Sealed Box Vol : 4.6 cu. ft. Min Vented Box Vol : 1.75 cu. ft. Max Vented Box Vol : 2.25 cu. ft. Weather resistant - Suitable for marine use in additional to car applications We can ship Kicker products to the 48 continental United States